From my father's desk, the place with internet!, I can hear the planes flying down the Thames to Heathrow. At home I hear birds and strange hoots or howls in the night, here it is always the planes, night and day.
How long before the next one comes over? Ah, here it is. One goes then the next one arrives. 12.28. 12.29, now silence... 12.30 yes, here comes the next one, a higher pitched whine, I have never listened so carefully to them before, 12.31, at its loudest now, passing over and fading. Mixed up with a second one, also now at its loudest.... there's an echo-y sound as it fades. 12.32.. oh and another is arriving before that one had disappeared.
So, if there is an actual gap between them that is a special pleasure. It's only 12.33. What a busy time of day. That one was a bigger plane, deeper engines. 12.34.. nearly silence, will it happen? No! Hallo next one. Still only 12.34.